Boiler and furnace arch



B. NEILL BOILER AND FURNACE ARCH Filed Feb. ,19. 25 -Fi Aug. 24 -19ze.-1,597,385

Patented Aug. 24, 1926.

BEn'rnAivr NEILL, or NORWALK, CALIFORNIA.

'.BOILER AND FURNACE ARCH.

Application filed February This invention relates to improvements inbrick arches for boilers, furnaces and the like.

Heretofore it has been common practice to provide an arcuate steel framehaving its ends bent downwardly to provide abutments for the ends of arow of bricks adapted to be clamped within the frame in forming an arch.This construction permitted the bricks to be inserted into the frame byspringing apart the abutment forming ends, but was found disadvantageousfor the reason that the brick would vary in size and for this reasonchipping` of the brick was frequently necessary.

lt is therefore an object of this invention to provide an improved frameor bracket for holding brick in forming an arch, wherein adjustment ofthe abutments is provided so that chipping of the bricks is unnecessary.

lith the foregoing and other objects in view which will be made manifestin the following detailed description and pointed out in the appendedclaims, reference is had to the accompanying drawings for an illus-ytrative embodiment of the invention, where- Figure 1 is a. verticalsection through a boiler mounting, showing the `boiler in elevation andshowing the arch formed with the improved frame or bracket in appliedposition;

Fig. 2 is a vertical section through the improved frame or bracket;

Fig. 3 is a view in elevation taken in the direction of the arrow 3 uponFig. 2;

Fig. 4 is a perspective view of the arcuate member employed in formingtheframe or bracket;

Fig. 5 is a view in side elevation of the movable memberv forming a partof the frame; and

Fig. 6 is a view in elevation taken substantially in the direction ofthe arrow 6 upon Fig. 5.

Referring to the accompanying drawings wherein similar referencecharacters designate similar .parts throughout, the boiler is designatedat B, which is provided with return tubes 10. 11 designates one of theheads of the boiler, which may be provided with certain fixtures, as,for example` a fuse plug 12, a manhole bracket 13, and other xtures 14.The reference character 15 designates one of the masonry walls of theboiler .mount-ing, and in the illustration, the

19, 1925. Serial No. 10,306.

-wall 15 may be considered as the rear wall of the boiler mounting,which is to be provided with a brick arch for directing flame and hotgases backwardly through the return tubes 10. IThis arch is designatedat 16. In forming the arch, the frame of the improved constructionconsists of an arcuate member 17, which is of a suitable `width and bentpreferably upon an arc of a true circle. One end of the arcuate member17 is bent downwardly, as at 18, providing an abutment for the end ofthe row of bricks 19. The lower end of theportion 18 is bent outwardlyto provide anl outwardly extending lip 2O for a purpose hereinafter tobe described. arcuate member 17 there are rigidly mounted studs 21 and22, which may have their ends countersunkwithin the arcuate member 17,or may be otherwise secured to the arcuate member. The movable memberisl shown in Figs. 5 and 6 and has an angular portion 23 providing anabutment opposite the abutment 18 for the other end of the row of bricks19. The portion 24E extends over the back of the arcuate member 17 ashort distance and is then bent upwardly slightly, as indicated at 25.The end of the movable member is reversely bent upon itself, as at 26,and extends beneathlthe portion 27. The end of the movable member isdisposed adjacent the arcuate member 17 and is beveled ofi', asindicated at 28. Elongated slots 29 and 30 are formed in themovable-member and are adapted to receive the studs 21 and 22respectively. Nuts 31 are adapted to bethreaded onto vthe studs 21 and22 and washers 32 maybe interposedbetween the nuts 31 andthe movablelmember. A wedge 33 is adapted to be placed between the stud 21 and theend of the movable member, pre senting an inclined shoulder 28.-

The assembly is as, follows: VThe bricks forming the row 19 arepositioned upon the underside of the arcuate member 17. lVhen all of thebricks are in place, the wedge 33 is driven between thestu'd 21 and theshoulupwardly upon the arcuate member 17 so as to firmly clamp thebricks between the abutments provided at 18 and 23. Vhen the wedge 33has been driven home so as to Adjacent the. other'end ofthe' n der 28and this draws the movable k:member tightly'clamp the bricks,the nuts 31may be screwed down by a wrench so as to firmly keep the movable memberin place. f the nuts 31 are tightened, the clamp or When y the lbricksin forming the arch, and it will benoted that it is not necessary tosecure the frame or its respective row of bricks to either the boiler orto the wall 15. It any of the bricks become burnt or damaged, they maybe readily removed by merely lifting the clamp from its position againstthe boiler and upon the wall 15.

In the course of time the lip 20 which is exposed to the'flame and hotgases may become burnt, and it then' is necessary to remove the lframeand substitute anew arcuate member 17. s

The advantage of using the arcuate inem- Vber 17 with its outwardlyflaring lip- 20 is that the edge of the lip rests against the head ofthe boiler, and in this manner the lip bears upon the head only with itsedge so that regardless of how many fixtures, such as indicated at 12,13 and 14, there may be upon the head, the lip 20 is usually arrangedbetween these fixtures. The lip 2O is preferably of the width of thewidth of the bricks forming the row 19, so that when the frames with thebricks therein are placed upon the rear wall 15, side by side, noopening is left betweenthe respective rows of bricks.

It will be understood that various changes in thedetail of constructionmayA bev made i' without departing from' the spirit or scope of theinvention as defined by the appended claims. f

I claim: Y i

l. A device ofthe class described comprising an arcuate member, againstthe underside of which are adaptedto be placedbricks in forming an arch,means upon oneV end oi said member providing an" abutment for saidbricks, studs` mounted upon the other end 'of said member, amovablelmember having slots formed therein through which said studsextend, said member providing an abutment, and nuts upon said studs fortighteninfr said movable member "against movement relatively tosaidarcuate member.

2.' A device of the class described comprlsinij` an arcuate member,against the underside of which are adapted to be placed bricks informing an arch, means upon one end of said member providing an abutmentfor said bricks, studs mounted upon the other end of said member, amovable member having slots formed therein, through which said studsextend, said member providing an abutment, nuts upon said studs fortightening said movable member against movement relativelyto saidarcuate member, andV a wedge adapted to be driven between one of saidstuds and a shoulder upon said movable member causing saidabutments toclamp'upon thebricks preparatory to tightening said nuts.

Y 3. A'device of the class described comprising an arcuate member,against 'the underside of which are adapted to be placed bricks informing an arch, means uponl one end of said member providing anabutment for said bricks, studs mounted upon the other end of saidmember, a movable member having slots formed therein, through which saidstuds extend, said member providing an abutment, and nuts upon` saidstuds for tightening said movable member against.

movement relatively to said arcuate member, one of said abutments beingprovided with an outwardly extending lip as and for the purposedescribed.

ell. fkdevice of the class described comprising an arcuate member,against the underside of which is adaptedV to be placed brick in formingan arch, abutments provided adjacent each end of said arcuate member,andan outwardly extending lip provided upon one of said abutments as andfor the purpose described.

5. A device of the class described com-- prising an arcuate memberhaving onel end bent downwardly to-V provide an abutment,

studs mounted upon'the other end ot said arcuate member, a movablemember providing another abutment for said arcuate member and havingslots therein,`through which said studs extend, said movable memberhaving one end reversely bent uponv itself to provide ajshoulder, awedge adapted tobe driven between' one of said studs and said shoul'denVand nuts threaded on to said studs for clamping said movableinember tosaid arcuate member when said wedge has been driven home.`

In testimony whereof I have signed my I name to this speciication;

